Malicious PDF — malware analysis report

Static analysis result for SHA-256 047166b86b0d08c3…

MALICIOUS

PDF

71.6 KB Created: 2021-02-14 13:02:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 48a9b88ec8caad03318ae29cf5b16f1c SHA-1: 2a63766489984ea0fbaac9aa6e6589737e38b695 SHA-256: 047166b86b0d08c38405ee7be8b2cbbfaecfc67829c8a8d12919658d289d78ae
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/123?utm_term=hundred+pull+ups+a+day PDF link annotation
    • http://zavarivaemvmeste.ru/madden_15_xbox_one_controlstvuwm.pdfIn PDF document text
    • https://zomerasojukoluw.weebly.com/uploads/1/3/4/7/134769652/9a99a1e115d.pdfIn PDF document text
    • https://wasavegod.weebly.com/uploads/1/3/4/5/134589575/7005047.pdfIn PDF document text
    • https://liziwozubol.weebly.com/uploads/1/3/4/8/134851467/3077603.pdfIn PDF document text
    • https://dubujede.weebly.com/uploads/1/3/4/6/134607356/nimimoterarisixi.pdfIn PDF document text
    • http://nanolenka.xyz/70016077841fynzs.pdfIn PDF document text
    • https://farisogu.weebly.com/uploads/1/3/4/3/134307724/dd0ec6a2b0ba.pdfIn PDF document text
    • http://iclod.tech/english_9_task_10_delving_deeper_answerh02cs.pdfIn PDF document text
    • https://ziwivebagojub.weebly.com/uploads/1/3/1/8/131871618/banese.pdfIn PDF document text
    • https://xulakuvoloja.weebly.com/uploads/1/3/0/8/130813987/sonuwezuful-bakixaropezafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kigavanus/modovufuxubina.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/24922611506.pdfIn PDF document text
    • http://banobozibijur.epizy.com/superman_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/30160974636.pdfIn PDF document text
    • http://dadokupokumudav.rf.gd/sibixubazirivivefoforira.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/pathway_fistula_ani.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/vanilla_wow_fishing_guide_reddit.pdfIn PDF document text
    • http://jifigazanovew.epizy.com/52939635652.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3C 5016 bytes
SHA-256: d32945497dd4fc6cea2f6d51f0099ed36f45652fb29c46c1a1073e094c54355f
font_01_sfnt_off0000ee5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5E 10276 bytes
SHA-256: 8821d42ac18757e1fe06f36801b80f8c0855983374840e5ef39f00beb1d62148

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